Defining PsychologyPsychology is the scientific study of human mental processes and behavior. Show
Learning Objectives Identify the major branches of the field of psychology Key TakeawaysKey Points
Key Terms
Psychology is the academic and applied study of mental functions and behaviors. The word "psychology" comes from two specific Greek words—psyche, which means "soul,"
"life," or "mind," and logia, which means "the study of." Simply put, psychology is the study of the mind. Biology, psychology, and society shape our lives: Psychology seeks to understand how psychological factors interact with sociocultural and biological factors to influence individual development. Psychology explores concepts such as perception, cognition, attention, emotion, phenomenology, motivation, brain functioning, personality, behavior, resilience, the unconscious mind, and interpersonal relationships. The resulting knowledge is then applied to various spheres of human activity, including the problems of individuals' daily lives and the treatment of mental illness. Psychology has been described as a "hub science" because psychological research has links to the social sciences, natural sciences, medicine, and the humanities (such as philosophy). Clinical vs. Non-Clinical Psychology Clinical psychology focuses on the diagnosis and treatment of mental disorders and mental illness. Psychologists working in a clinical capacity (such as therapists or counselors) work with clients who are struggling with mental illness to assess, diagnose, and implement various forms of therapeutic treatment. Much of this treatment is based on clinical research. Early Roots of PsychologyThe field of psychology emerged as a scientific discipline in the 19th century, but its roots go back to ancient philosophy. Learning Objectives Describe the philosophical roots of what would later become the field of psychology Key TakeawaysKey Points
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Many cultures throughout history have speculated on the nature of the mind, heart, soul, spirit, and brain. Philosophical interest in behavior and the mind dates back to the ancient civilizations of Egypt, Greece, China, and India. Psychology was largely a branch of philosophy until the mid-1800s, when it developed as an independent and scientific discipline in Germany and the United States. These philosophical roots played a large role in the development of the field. Early PhilosophyFrom approximately 600 to 300 BC, Greek philosophers explored a wide range of topics relating to what we now consider psychology. Socrates and his followers, Plato and Aristotle, wrote about such topics as pleasure, pain, knowledge, motivation, and rationality. They theorized about whether human traits are innate or the product of experience, which continues to be a topic of debate in psychology today. They also considered the origins of mental illness, with both Socrates and Plato focusing on psychological forces as the root of such illnesses. Plato and Aristotle: Plato, Aristotle, and other ancient Greek philosophers examined a wide range of topics relating to what we now consider psychology. 17th Century René Descartes, a French mathematician and philosopher from the 1600s, theorized that the body and mind are separate entities, a concept that came to be known as dualism. According to dualism, the body is a physical entity with scientifically measurable behavior, while the mind is a spiritual entity that cannot be measured because it transcends the material world.
Descartes believed that the two interacted only through a tiny structure at the base of the brain called the pineal gland. Psychology as an Independent DisciplineThe first use of the term "psychology" is often attributed to the German scholastic philosopher Rudolf Göckel, who published the Psychologia hoc est de hominis perfectione, anima, ortu in 1590. However, the term seems to have been used more than six decades earlier by the Croatian humanist Marko Marulić in the title of his Latin treatise, Psichiologia de ratione animae humanae. The term did not come into popular usage until the German idealist philosopher Christian Wolff used it in his Psychologia empirica and Psychologia rationalis (1732–1734). In England, the term "psychology" overtook "mental philosophy" in the middle of the 19th century. Wilhelm Wundt The late 19th century marked the start of psychology as a scientific enterprise. Psychology as a self-conscious field of experimental study began in 1879, when German scientist Wilhelm Wundt founded the first laboratory dedicated exclusively to psychological research in Leipzig. Often considered the father of psychology, Wundt was the first person to refer to himself as a psychologist
and wrote the first textbook on psychology, entitled Principles of Physiological Psychology. Wilhelm Wundt Wilhelm Wundt is considered by many to be the founder of psychology. He laid the groundwork for what would later become the theory of structuralism. Structuralism Edward B. Titchener, an English professor and a student under Wundt, expanded upon Wundt's
ideas and used them to found the theory of structuralism. This theory attempted to understand the mind as the sum of different underlying parts, and focused on three things: (1) the individual elements of consciousness; (2) how these elements are organized into more complex experiences; and (3) how these mental phenomena correlate with physical events. Functionalism As structuralism struggled to survive the scrutiny of the scientific method, new
approaches to studying the mind were sought. One important alternative was functionalism, founded by William James in the late 19th century. Built on structuralism's concern with the anatomy of the mind, functionalism led to greater concern with the functions of the mind, and later, to behaviorism. Psychology 101—Wundt and James: structuralism and functionalism: Here, the foundations of structuralism and functionalism are contrasted. Structuralism's reliance on introspection eventually proved unscientific. Functionalism's emphasis on the scientific study of the adaptive functions of behaviors and mental processes advanced the study of psychology
as a science. Current Issues and Debates in PsychologyDebates and controversies in psychology have spanned the decades and continue to change over time. Learning Objectives Analyze the current issues and debates taking place in modern psychology Key TakeawaysKey Points
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Psychological debates have spanned the decades and continue to change over time. With the 2013 release of the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), psychologists continue to debate controversial issues in their field. Defining "Normal" and "Healthy" One of the ongoing debates in psychology is how to define the concepts of "normal" and "healthy." Psychologists often rely on these terms to assess, diagnose, treat, and counsel individuals who are experiencing mental-health difficulties; however, these terms are
subject to interpretation. What is normal or healthy behavior for one person may be unhealthy or ineffective for someone else. Behavior can be normal for an individual (intrapersonal normality) when it is consistent with the most common behavior for that person, even if that behavior leads to negative consequences. Nature vs. Nurture Debate One
of the central debates in psychology involves the origin of human behavior. Is behavior caused by biological factors present in the human body (nature), or is it caused by interactions between the individual and his or her environment (nurture)? Changes to (and Controversies within) the DSM-5Autism Spectrum Disorder Many of the current debates in psychology can be seen in the recent changes to the DSM-5. Reports of autism are on the rise: Reports of autism cases per 1,000 children increased dramatically in the US from 1996 to 2007. It is unknown how much, if any, of this growth is due to changes in autism's actual incidence (as opposed to changes in the rate of reporting). Gender DysphoriaAnother recent change to the DSM-5 is the renaming of " gender identity disorder" to "gender dysphoria." The change separates adults, children, and adolescents appropriately by developmental stages, and was moved from the sexual disorders category to a separate category of its own. One of the major impacts of this change is the reduction of stigma by changing the language from "disorder" to "dysphoria," which serves as a step toward depathologizing people who identify as transgender or differently gendered. At the same time, transgender people seeking surgical or hormonal treatment have historically been forced to rely on the diagnosis of gender identity disorder in order to access the appropriate treatment, however stigmatizing the diagnosis may be. It is unclear what effect this change in language will have on individuals' ability to access appropriate medical care. Depressive DisordersWithin the depressive disorders of the DSM-5, bereavement exclusion no longer exists; this means that people who are in severe depressive states due to grief can be diagnosed with clinical depression. Under the new guidelines, certain responses to grief could be labeled as pathological disorders, instead of being recognized as normal human experiences Borderline Personality DisorderIn 2003, the Treatment and Research Advancements Association for Personality Disorders (TARA APD) campaigned to change the name and designation of borderline personality disorder (BPD), arguing that BPD as it currently stands is "confusing, imparts no relevant or descriptive information, and reinforces existing stigma." Instead, it proposed the name "emotional regulation disorder" or "emotional dysregulation disorder." There was also discussion about changing borderline personality disorder, an Axis II diagnosis (personality disorders and mental retardation), to an Axis I diagnosis (clinical disorders). However, the name, the diagnostic criteria, and the description of BPD remain largely unchanged from the previous DSM-IV-TR. Electroconvulsive Therapy Electroconvulsive therapy (ECT) is a controversial approach to the treatment of severe mental illness that involves inducing minor seizures within the brain through electrical impulses. Much of the treatment's controversy stems from its early usage in the 1940s, and popular-culture references, such as the film One Flew Over the Cuckoo's Nest.
ECT has been dramatically improved over time and is generally used as a treatment of last resort for severe disorders—such as major depression, schizophrenia, or bipolar mania—that do not respond to other forms of treatment. About 70 percent of patients are women. Controversy continues to surround ECT due to its side effects on memory and general cognition after treatment, as well as its debated level of effectiveness. While some studies have shown ECT to drastically improve symptoms with
perhaps fewer side effects than some medications, other studies point to high rates of relapse. It is unknown why the treatment is effective in many cases of severe mental disorders. Licenses and AttributionsCC licensed content, Shared previously
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Is the study of the physical brain and body structures that underlie behavior and mental processes?Psychology is the scientific study of the mind and behavior. Psychologists are actively involved in studying and understanding mental processes, brain functions, and behavior.
Which field of psychology is concerned with the relationship between mental processes and physical structures in the body?Biological psychology – also known as biopsychology or psychobiology – is the application of the principles of biology to the study of mental processes and behaviour.
What branch of psychology studies behavior by examining physiological processes that occur in the brain?biological psychology, also called physiological psychology or behavioral neuroscience, the study of the physiological bases of behaviour.
What approach do psychologists use for understanding behavior and mental processes?The Behavioral Perspective
* This approach centers around learned behaviors rather than internal processes like cognition. In other words, behavioral psychologists explore psychology through observable behaviors and actions. In this perspective, psychologists treat all behavior as learned or acquired.
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